Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker PUPSIL352 Defoamer

Wacker PUPSIL352 Defoamer is a silicone-based antifoam agent from Wacker’s PUPSIL® series, designed for robust foam control in demanding aqueous industrial processes including coatings, adhesives, and cleaning formulations. It offers rapid knock-down, long-lasting suppression, excellent compatibility, and low dosage efficiency without affecting product clarity or performance.
  • wacker pupsil352 defoamer_3d257812
  • wacker pupsil352 defoamer_3d257812

Features Of Wacker PUPSIL352 Defoamer

  1. Highly effective silicone-based defoamer for rapid foam knock-down and long-term foam suppression.

  2. Excellent compatibility with water-based systems, including acrylic, vinyl acetate, and styrene-butadiene emulsions.

  3. Low dosage requirement—typically effective at 0.05–0.3 wt% relative to total formulation.

  4. Thermally stable up to 120 °C, maintaining performance during high-temperature polymerization and processing.

  5. Non-yellowing and non-silicone-residue-forming, ensuring clarity and surface quality in final coatings and adhesives.

Typical Applications Of Wacker PUPSIL352 Defoamer

  1. Waterborne architectural and industrial coatings (e.g., interior/exterior paints, primers).

  2. Adhesives and sealants, especially pressure-sensitive and latex-based formulations.

  3. Emulsion polymerization processes for synthetic rubbers and vinyl polymers.

  4. Construction chemicals, including cementitious mortars, tile adhesives, and self-leveling compounds.

  5. Textile auxiliaries such as dyeing and finishing baths where foam interferes with uniform application.

Specifications Of Wacker PUPSIL352 Defoamer

Chemical TypeSilicone oil-in-water emulsion
Product FormWhite to off-white liquid
AppearanceOpaque, slightly viscous emulsion
pH (1% aqueous dispersion)6.0–7.5
Active Content30–35 wt%
Specific Gravity (20 °C)0.98–1.02 g/cm³
Storage Stability≥6 months at 5–30 °C (unopened)
Primary ApplicationsWaterborne coatings, adhesives, emulsion polymerization, construction chemicals


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